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Official data from INPI

PROCESSO PARA ELETROLITICAMENTE OBTER-SE METAL MAGNÉSIO

ConcedidaInvention Patent

Application data

Number

PI8306288

Type

Invention Patent

Filing

11/16/1983

Publication

07/03/1984

Progress at the INPI

  1. Filing11/16/83
  2. Publication07/03/84
  3. Examination08/05/86
  4. Allowance05/09/89
  5. Grant11/28/89
  6. Expired07/01/08

The letters patent expired on 07/01/2008: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

Talk to a specialist

Latest action published by the INPI: 11/28/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

H. I. (pessoa física)

JP

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Inventors

H. I. (pessoa física)

JP

Technical data

IPC Classification

Priority claims

JP

203229/82 · 11/19/1982

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

11/28/1989

RPI 997

Notificação para pagamento de retribuição

#13.1

09/05/1989

RPI 985

Deferimento

#9.1

05/09/1989

RPI 968

Exigência - art. 36 da LPI

#6.1

09/27/1988

RPI 936

6.2

07/21/1987

RPI 874

Solicitação de exame técnico

#4.1

08/05/1986

RPI 824

Republicação - classificação IPC

#15.11

09/25/1984

RPI 727

Publicação do pedido de patente

#3.1

07/03/1984

RPI 715

Pedido de patente depositado

#2.1

01/24/1984

RPI 692

Carta-patente expirada

#21.1

Patente extinta em 16/11/98

07/01/2008

RPI 1956

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